Machine for molding plastic articles.



C. 6-. BE'WLEY. MACHINE FOR MOLDING PLASTIC ARUCLES.

' APPLICATION FILED M164. 1914.

l 1 85,968 Patented J 11110 6, 1916.

4 SHEETS-SHEET W? L M a 4 I (I a! 2 J 2 V w '7 71 r"*- r Q? J ven Attorheys C. G. BEWLEY.

MACHINE FOR MOLDING PLASHC ARTICLES.

APPLICATION FILED AUG-4, 9141 i lfgififigjg Patented June 6,1916.

4 SHEETSSHEET 2- Witnesses 7 ew-mw Attorneys C. G. BEWLEY. MACHINE FOR MOLDING PLASTIC ARTICLES.

APPLICATION FILED AUG-4. Isl-4.

1,1 85.968. Q Patented June 6, 1916.

' 4 SHEETS-SHEET 3.

. 67d/z/Zz6ffiaJ /zy Witnesses v nven or V Q I Attorney;

v v. c. e. BEWLEY.

MACHINE FOR MOLDING PLASTIC ARTICLES.

APPLLCATION FILED AUG.4, 1911.

1,1 85,968. Yutwnmi J 11110 6, 19M

Inventor Witnesses Attorneys k in on line 4-4: of Fig. 1.

CLAUDE G. B-EWLEY, OF SPOKANE, WASHING-TONQ MACHINE FOR MOLDING PLASTIC ARTICLES.

Specification of Letters Patent.

Patented June 6, 1916.

- Application filed August 4, 1914. Serial 110,854,986.

To all whom it may concern Be it known that I, CLAUDE G. BnwLEY, a

citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented a new and useful Machine for Molding Plastic Articles, of which the following is a specification.

The present invention relates to improve- 1o ments in machines for molding plastic articles, the present invention being especially for molding concrete flower pots and saucers, one object of the invention being the provision of mechanism by means of which 5 the members of the mold are rotated so that the poured cement concrete may be properly tamped during the filling of the mold and whereby the rim may be properly formed upon the pot or saucer after the final tampzo A further object of the present invention is the provision of a machine/of this character, in which the cement concrete is mixed, and delivered to the mold, the prime mover 25 for the mixing means also being the prime mover for rotating the members of the mold so that the concrete will be properly delivered equally throughout the mold. A still further object of the present inven: 3 tion is the provision of a tamping means operated from the prime mover for tamping the concrete after the same is delivered to the mold, thus properly packing the material therewithin so that a uniform thickness of .5 pot or saucer will be formed.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in 4 the details of construction hereinafter described andclaime'd, it being understood that changes in the precise embodiment of the in vention herein disclosed can be made within the scope of what is claimed without departmg from the spirit of the invention.

In the drawings-Figure 1 is a side elevation o'fthe complete machine. Fig. 2 is a front elevation thereof. "Fig. 3 is a top 'plan view thereof. Fig. 4 is a section taken Fig. 5 is an enlarged detail sectional view through the female mold carrying means. Fig. 6 is a section taken in line 6-6 of Fig. 5. Fig. .7 is an enlarged detail sectional view of the male 65 member of the mold showing the means for elevating and lowering the same and also the slidable means for forming the upper rim of the pot or saucer. Figs. 8 and 9 are top plan views respectively, of the male mold carrying member and the rim forming member of the machine.

Referring to the drawings, the numeral 1 designates the two front legs and 2 the two rear legs, of the main frame of the present device, a platform 3 being supported by the legs and constituting the support for the main mechanism of the mold and for the motor 4, the same in the present instance being shown as an electric motor. is operated by an electric motor 4, and operates the main shaft 6 of the present mechanism. Keyed upon this shaft, as clearly illustrated in Fig. 4, are the two worms 7 and 8, the worm 7 being in mesh with the horizontal worm gear 9 mounted upon the vertical shaft 10. i This shaft 10 is extended upwardly and operates the concrete mixer 11, which is roperly supported from the framework. mixer 11 is the flexible pipe 12, which direct-s the semiliquid concrete from the mixing receptacle 11 to the mold of the present mechanism. Meshing with the worm 8, is a horizontal worm gear 13, which is splined to the vertical shaft 14, by means of the key way 15, said shaft 14 being capable of vertical sliding and rotary movements. Forming the journal for the vertical shaft 14, is a vertical cylindrical member 16, which is mounted for sliding movement and is held in place by the tightening collar 17 within the sleeve 18 of the female mold. member carrying plate 19. The disk 20 disposed upon the upper end of the. membe'r16 fits within the upper face of the plate 1-), and carries the anti-frictional bearings 21 for the anti-frictional reception of the; disk 22 at the upper end of the shaft 14 which constitutes a rotating support for the female mold 58, which in the present instance is shown-in the form of afiower pot. Apin 23,,

is carried by the disk 22 and is disposed to engage the bottom of the mold 58, and forms a lock or key therewith, so that when the shaft 14 is rotated, the platform 22 will also rotate and consequently rotate therewith, the female mold. 58 and the contents between it and the male mold'member 38, as will presently appear. The centrally disposed pin 24 is carried b the platform 22, and forms the central be e tl lm gh the bottom of the flower pot.

A belt 5 eading from the concrete through {121g movameni 1pm ends 01' 5M3.

310M member car-- structura of wmch The Mag M1 with for mnnw member :1 is

the two Ycrtical er portion of he can suite and. f the rim of ihv pot. Two springs 45; 5 connectei ta the cross bar and is the 11112119 so :13 t0 normaiiy hold tha rim forming member 21 in its ug'n'mrd as clearly in The veriicai rods 44 are siidahic 'ough time platform 3 the means for adjusting said rods 4% is located beiow said platform; the being dispased adjacent or 5m mdis 31 In an? fihe male ma .reimiion for moving into am 011 01? nufiding Hid-Old mber 5o, conpiings 8215.5 of the ing oper- "cat-ed arm.

311 u 9 1e reds 31 are 0 m: The ha 2 Del er in uflsd :1 provided 'mth the t hand lever L5" llv Wm eie'mte both .he

c'uently move "the, mom .7 pmpel' rewption of film buttom the poi or free. in suave downmsed in the pc-sition as k .2 1e material is poured ha Hm maid members, and the 2'mfiafed. in ordsr to pmvid a, n

concr L L same 13 up p1,

QMUL u 15 comm vi ec ing beam winch 1S ms for tamping be projected into the space between the two mold members 38 and 58 and as such action is imparted to the tamping member during the rotation of the two mold members and a feeding of the concrete by the spout 1:2 therebetween, it is evident that the material will be properly distributed and tainped simultaneously with the rotation of "the mold members. By means of the adjustable connection at the slot Gi and pin 65, the

' position of the walking beam relatively to the support 66 may be readily determined so that the tamping member may be used in connection with wide or narrow articles. The sliding member 16 regulates the depth of the articles.

From the foregoing description, it is evident that with a machine of this character, that flower pots and other articles of a similar nature that it is desired to mold from a cement concrete, may be quickly formed in the desired shape, the molds be ing rotated during the filling and tamping thereof, so that the material is properly tamped and evenly distributed between such members, a rim forming means being so mountedin connection with the mold members as to form the rim upon the pots or saucers after the proper filling and tamping of the molds.

What is claimed is;

1. In a molding machine, a vertical shaft having a disk at its upper end, a female mold upon said disk and rotatable therewith, a vertical member through which said shaft is journaled and having a portion at its upper end supporting said disk, a sup port through which said member is slidable, means carried by the support for adjusting said member vertically, a rotatable male means operatively connected with the said shaft below mold in the female mold, and

said member for rotating the shaft at various vertical positions thereof. 7.

2. In a molding machine, a frame having a platform, a rotatable female mold upon. said platform, a male mold within the female mold, amember to which the upper endv of the male mold is rotatably engaged, a pair of opposite vertical rods slidable through the platform and having their upper ends attached. to said member, means carried by the frame below the platform for adjusting rods vertically, a rim forming member in which the male mold is rotatable, a pair of opposite vertical rods slidable through the platform and having their upper ends attached to the rim forming member, the second mentioned pair of rods being disposed adjacent the first mentioned rods, and means carried by the frame below the platform for adjusting the second men tioned rods vertically. I

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

CLAUDE G. BEWLEY.

lVitnesses C. D. RANDALL, B. B. ADAMS. 

